Having tried to pick up Avid, Premiere, Final Cut, and Vegas, Vegas is by far the most intuitive to me to use (though Avid was a close second back when I used it in 2003/2004. No idea if that still bears out.)

[Stephen Mann]"I taught my daughter the editing basics on Vegas in an hour."

I also taught my daughter to use Movie Studio in about an hour as well. She now uses iMovie because she's on a Mac but she was doing some amazing things with Movie Studio without me having to show her how. It's a very easy program to use.